The Big Bang Theory

The Separation Oscillation

Aired Sep 28, 2015 · 8:00 PM ET · 25 min

Leonard confronts the woman he kissed on the North Sea in an attempt to set Penny’s mind at ease. Also, Sheldon films a special episode of “Fun with Flags” after his breakup with Amy, and Bernadette feels guilty about withholding a secret from Penny.